1. All IP Ranges
  2. 145.0.0.0/8
  3. 145.0.0.0/16
  4. AS1103  | 145.0.0.0/16

145.0.0.0/16

AS1103  ·  SURF B.V.

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Summary

Country Netherlands
Domain surfnet.nl
ASN AS1103
Registry RIPE
ID SURFNET-EARLY-REGISTRATIONS

WHOIS Details

inetnum:        145.0.0.0 - 145.0.255.255
netname:        SURFNET-EARLY-REGISTRATIONS
descr:          SURFnet bv
org:            ORG-Sb3-RIPE
country:        NL
admin-c:        SNS1-RIPE
tech-c:         SNS1-RIPE
status:         LEGACY
mnt-by:         RIPE-NCC-LEGACY-MNT
remarks:        ---------------------------------------------------
remarks:        Use only [email protected] to report security incidents.
remarks:        See also http://cert.surfnet.nl/ for more information.
remarks:        ---------------------------------------------------
mnt-by:         SN-LIR-MNT
mnt-lower:      SN-LIR-MNT
mnt-lower:      SURF-AUTO-MNT
mnt-routes:     AS1103-MNT
created:        2017-04-13T14:07:48Z
last-modified:  2025-10-02T17:29:07Z
source:         RIPE
abuse-email:    [email protected]
abuse-c:        SNS1-RIPE
abuse-org:      ORG-Sb3-RIPE

organisation:   ORG-Sb3-RIPE
org-name:       SURF B.V.
country:        NL
org-type:       LIR
address:        P.O. Box 19035
address:        3501 DA
address:        Utrecht
address:        NETHERLANDS
phone:          +31887873000
e-mail:         [email protected]
admin-c:        HT3384-RIPE
admin-c:        MK512-RIPE
admin-c:        SNS1-RIPE
admin-c:        WB311-RIPE
admin-c:        NO17-RIPE
admin-c:        RS957-RIPE
admin-c:        JO5863-RIPE
admin-c:        MM57501-RIPE
abuse-c:        SNS1-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        SN-LIR-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         SN-LIR-MNT
created:        2004-04-17T11:43:29Z
last-modified:  2023-02-21T13:35:38Z
source:         RIPE
abuse-email:    [email protected]
abuse-c:        SNS1-RIPE
abuse-org:      undefined

role:           SURF Network Maintainer
address:        Kantoren Hoog Overborch (Hoog Catharijne)
address:        Moreelsepark 48, 3511 EP Utrecht
address:        Postbus 19035, 3501 DA Utrecht
phone:          +31 88 7873000
admin-c:        WB311-RIPE
tech-c:         NO17-RIPE
tech-c:         WB311-RIPE
tech-c:         MK512-RIPE
tech-c:         JO5863-RIPE
tech-c:         MM57501-RIPE
tech-c:         BW4086-RIPE
tech-c:         EV4604-RIPE
nic-hdl:        SNS1-RIPE
abuse-mailbox:  [email protected]
mnt-by:         AS1103-MNT
created:        2002-07-09T10:06:06Z
last-modified:  2025-11-05T14:44:07Z
source:         RIPE
e-mail:         [email protected]

route:          145.0.0.0/16
descr:          Early registrations SURFnet bv
origin:         AS1103
notify:         [email protected]
mnt-by:         AS1103-MNT
created:        2005-03-07T11:05:31Z
last-modified:  2019-03-21T09:01:43Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 145.0.0.0/8

Range ASN Company Num of IPs
145.132.0.0/15 AS8075 Microsoft Limited 131,072
145.228.0.0/16 AS33873 Arvato Systems GmbH 65,536
145.95.0.0/16 AS1103 SURF B.V. 65,536
145.13.0.0/16 AS21286 F&IT RIM - OsirisNG, Zoetermeer 65,536
145.243.0.0/16 AS200757 Axel Springer SE 65,536
145.82.0.0/16 AS25019 Saudi Telecom Company JSC 65,536
145.220.0.0/16 AS1101 SURF B.V. 65,536
145.236.0.0/16 AS1902 Budapest 65,536
145.55.0.0/16 AS16509 A100 ROW Inc 65,536
145.244.0.0/16 AS210543 Steiermaerkische Krankenanstalten GesmbH 65,536
145.86.0.0/16 AS15830 Medisch Spectrum Twente 65,536
145.126.0.0/16 AS1103 SURFnet bv 65,536
145.108.0.0/16 AS1103 Vrije Universiteit Amsterdam 65,536
145.239.0.0/16 AS16276 OVH SAS 65,536
145.232.0.0/16 AS15675 Etat de Vaud, CCT 65,536
145.230.0.0/16 AS12663 Vodafone Group Services GmbH 65,536
145.17.0.0/16 AS16509 A100 ROW Inc 65,536
145.243.0.0/16 AS16509 Axel Springer SE 65,536
145.221.0.0/16 AS15625 ING Bank NV 65,536
145.4.0.0/16 AS1136 PGGM N.V. 65,536
145.68.0.0/16 AS1136 ISC-NL 65,536
145.234.0.0/16 AS206567 Tamedia AG 65,536
145.94.0.0/16 AS1128 Delft University of Technology Network 65,536
145.52.0.0/16 AS1103 Haagse Hogeschool 65,536
145.76.0.0/16 AS1103 Hogeschool Saxion 65,536
145.81.0.0/16 AS1103 SURFnet bv 65,536
145.85.0.0/16 AS1103 Fontys Hogescholen 65,536
145.9.0.0/16 AS1103 Deltares 65,536
145.91.0.0/16 AS1103 Hogeschool Zuyd 65,536
145.245.0.0/16 AS2047 Hoffmann - La Roche Ltd. 65,536
145.19.0.0/16 AS1103 Hogeschool Zeeland Network 65,536
145.20.0.0/16 AS1103 Open Universiteit 65,536
145.7.0.0/16 AS1136 KPN B.V. 65,536
145.23.0.0/16 AS1103 Koninklijk Nederlands Meteorologisch Instituut 65,536
145.251.0.0/16 AS12552 Systembolaget AB 65,536
145.24.0.0/16 AS1103 Hogeschool Rotterdam & Omstreken 65,536
145.119.0.0/16 AS1136 ISC-NL 65,536
145.33.0.0/16 AS1103 Hanzehogeschool Groningen 65,536
145.103.0.0/16 AS1103 Stichting GlasLokaal 65,536
145.37.0.0/16 AS1103 Hanzehogeschool Groningen 65,536
145.18.0.0/16 AS1124 Universiteit van Amsterdam 65,536
145.41.0.0/16 AS1103 SURF B.V. 65,536
145.110.0.0/16 AS1104 NIKHEF 65,536
145.44.0.0/16 AS1103 Christelijke Hogeschool Windesheim 65,536
145.53.0.0/16 AS1136 KPN B.V. 65,536
145.5.0.0/16 AS1103 Erasmus Universiteit Rotterdam 65,536
145.117.0.0/16 AS1103 Academic Medical Centre 65,536
145.51.0.0/16 AS1103 Hogeschool Rotterdam & Omstreken 65,536
145.222.0.0/16 AS21286 KPN B.V. 65,536

Hosted domains

There are 19 domain names hosted across 5 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
145.0.2.50 trusted-introducer.com 11
145.0.6.43 edumeet.eu 3
145.0.6.62 geteduroam.org 3
145.0.6.61 csirt.nl 1
145.0.6.226 surfquizmas.nl 1

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.
Useful for Cybersecurity
Read more

Pingable IPs

78 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
145.0.6.21 AS1103 SURF B.V. 0.54ms from Amsterdam, NL
145.0.9.253 AS1103 SURF B.V. 0.72ms from Amsterdam, NL
145.0.1.253 AS1103 SURF B.V. 0.71ms from Amsterdam, NL
145.0.0.1 AS1103 SURF B.V. 0.56ms from Amsterdam, NL
145.0.2.253 AS1103 SURF B.V. 0.68ms from Amsterdam, NL
145.0.3.1 AS1103 SURF B.V. 1.41ms from Amsterdam, NL
145.0.7.126 AS1103 SURF B.V. 0.53ms from Amsterdam, NL

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
96.33.198.224 AS20115 Charter Communications LLC 16.62ms from Atlanta, US
91.37.253.80 AS3320 Deutsche Telekom AG 3.75ms from Hamburg, DE
14.187.117.128 AS45899 VNPT Corp 1.31ms from Ho Chi Minh City, VN
102.165.144.0 AS329078 Abari Communications 6.67ms from Johannesburg, ZA
47.137.34.48 AS5650 Frontier Communications of America, Inc. 7.61ms from Los Angeles, US
73.57.132.224 AS7922 Comcast Cable Communications, LLC 3.81ms from Miami, US
187.138.128.208 AS8151 UNINET 1.84ms from Monterrey, MX
152.232.215.112 AS55286 B2 Net Solutions Inc. 0.43ms from Montreal, CA
95.179.77.160 AS12389 PJSC Rostelecom 8.41ms from Moscow, RU
87.20.108.176 AS3269 Telecom Italia S.p.A. 5.33ms from Naples, IT
58.225.8.160 AS9318 SK Broadband Co Ltd 2.85ms from Seoul, KR
3.26.198.64 AS16509 Amazon.com, Inc. 0.73ms from Sydney, AU
82.24.124.16 AS3356 Level 3 Parent, LLC 1.31ms from Amsterdam, NL
35.84.190.112 AS16509 Amazon.com, Inc. 0.50ms from Boardman, US
13.59.179.80 AS16509 Amazon.com, Inc. 0.17ms from Columbus, US
71.237.46.192 AS7922 Comcast Cable Communications, LLC 5.67ms from Denver, US
51.91.56.208 AS16276 OVH SAS 0.17ms from Gravelines, FR
85.108.254.64 AS9121 Turk Telekomunikasyon Anonim Sirketi 4.59ms from Istanbul, TR
89.155.218.224 AS2860 NOS COMUNICACOES, S.A. 2.08ms from Lisbon, PT
88.3.96.144 AS3352 TELEFONICA DE ESPANA S.A.U. 1.24ms from Madrid, ES
142.251.242.176 AS15169 Google LLC 0.20ms from Manila, PH
69.180.85.192 AS7922 Comcast Cable Communications, LLC 6.24ms from Orlando, US
98.84.16.48 AS14618 Amazon.com, Inc. 0.38ms from Reston, US
173.254.85.64 AS46606 Unified Layer 2.02ms from Salt Lake City, US
23.216.213.64 AS16625 Akamai Technologies, Inc. 0.08ms from Santiago de Queretaro, MX

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

$
traceroute -a -n -q1 -m5 145.0.63.121
traceroute to 145.0.63.121 (145.0.63.121): 5 hops max, 52 byte packets
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Copenhagen, DK
On

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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